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Philco 40-120C Restoration
bluecap
Junior Member
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Posts: 8
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Joined: Feb 2025
City: Myakka City State, Province, Country: FL
#4

02-15-2025, 11:01 AM
Thank you for your replies.

That is the correct schematic and pin out diagram for the rectifier. The resistance across the power plug is 328.6 ohms.

At this point, I am getting some voltage to pass through the radio. (It is not correct, but that's another issue.) I've attached a picture of the 35Y4. It shows the key and the connection to the filament resistor. I replaced the new caps and resistors. The dark yellow wire from pin 5 to the 132-ohm end of the filament resistor is original.

The tube is a 35Y4. I believe it is the original one that Philco shipped with the radio, although the schematic shows 35Z3 because Pin 4 is connected and Pin 8 is not.


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Messages In This Thread
Philco 40-120C Filament Wiring - by bluecap - 02-13-2025, 11:28 AM
RE: Philco 40-120C Restoration - by klondike98 - 02-17-2025, 09:36 PM
RE: Philco 40-120C Restoration - by radiorich - 02-18-2025, 09:41 AM
RE: Philco 40-120C Restoration - by David - 02-18-2025, 02:48 PM
RE: Philco 40-120C Restoration - by MrFixr55 - 02-18-2025, 03:26 PM
RE: Philco 40-120C Restoration - by bluecap - 02-18-2025, 05:21 PM
RE: Philco 40-120C Restoration - by morzh - 02-18-2025, 07:09 PM
RE: Philco 40-120C Restoration - by bluecap - 02-18-2025, 07:58 PM
RE: Philco 40-120C Filament Wiring - by morzh - 02-14-2025, 10:55 PM
RE: Philco 40-120C Filament Wiring - by bluecap - 02-15-2025, 11:01 AM
RE: Philco 40-120C Filament Wiring - by morzh - 02-15-2025, 12:36 PM
RE: Philco 40-120C Filament Wiring - by bluecap - 02-15-2025, 04:29 PM
RE: Philco 40-120C Filament Wiring - by bluecap - 02-15-2025, 04:33 PM
RE: Philco 40-120C Filament Wiring - by morzh - 02-15-2025, 04:53 PM
Philco 40-120C Weak, Distorted Ouput - by bluecap - 02-17-2025, 05:49 PM



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